Follow us on Twitter
twitter icon@FreshPatents

Browse patents:
Next
Prev

Optical element and optical pickup apparatus




Title: Optical element and optical pickup apparatus.
Abstract: A production method of an objective lens for optical pickup apparatus having a numerical aperture NA of image side of 0.80 to 0.90 is disclosed. The method includes steps of molding resin composition containing copolymer of α-olefin and a cyclic olefin represented by Formula (I) or (II) to form lens shape, and thermally processing the molded product under a condition at a temperature between Tg −45° C. and Tg −15° C. for 12 to 168 hours, wherein the Formula (I) and (II) is detailed in the specification. ...


USPTO Applicaton #: #20090312510
Inventors: Yayoi Eguro


The Patent Description & Claims data below is from USPTO Patent Application 20090312510, Optical element and optical pickup apparatus.




← Previous       Next →
Advertise on FreshPatents.com - Rates & Info


You can also Monitor Keywords and Search for tracking patents relating to this Optical element and optical pickup apparatus patent application.

###

Keyword Monitor How KEYWORD MONITOR works... a FREE service from FreshPatents
1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored.
3. Each week you receive an email with patent applications related to your keywords.  
Start now! - Receive info on patent apps like Optical element and optical pickup apparatus or other areas of interest.
###


Previous Patent Application:
Polypropylene solution polymerization process
Next Patent Application:
Processes for correlating uv-vis spectra of norbornene compound to polymerization processes using the same, and related purification methods and compositions
Industry Class:
Synthetic resins or natural rubbers -- part of the class 520 series
Thank you for viewing the Optical element and optical pickup apparatus patent info.
- - -

Results in 0.04346 seconds


Other interesting Freshpatents.com categories:
Nokia , SAP , Intel , NIKE ,

###

Data source: patent applications published in the public domain by the United States Patent and Trademark Office (USPTO). Information published here is for research/educational purposes only. FreshPatents is not affiliated with the USPTO, assignee companies, inventors, law firms or other assignees. Patent applications, documents and images may contain trademarks of the respective companies/authors. FreshPatents is not responsible for the accuracy, validity or otherwise contents of these public document patent application filings. When possible a complete PDF is provided, however, in some cases the presented document/images is an abstract or sampling of the full patent application for display purposes. FreshPatents.com Terms/Support
-g2-0.3277

66.232.115.224
Browse patents:
Next
Prev

stats Patent Info
Application #
US 20090312510 A1
Publish Date
12/17/2009
Document #
12482037
File Date
06/10/2009
USPTO Class
526281
Other USPTO Classes
264/26, 359355
International Class
/
Drawings
2


Numeric Numerical Aperture Objective Lens Pickup

Follow us on Twitter
twitter icon@FreshPatents





Browse patents:
Next
Prev
20091217|20090312510|optical element and optical pickup apparatus|A production method of an objective lens for optical pickup apparatus having a numerical aperture NA of image side of 0.80 to 0.90 is disclosed. The method includes steps of molding resin composition containing copolymer of α-olefin and a cyclic olefin represented by Formula (I) or (II) to form lens |
';